1//===-- RegisterContextFreeBSD_i386.cpp ------------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===---------------------------------------------------------------------===// 9 10#include "RegisterContextPOSIX_x86.h" 11#include "RegisterContextFreeBSD_i386.h" 12 13using namespace lldb_private; 14using namespace lldb; 15 16// http://svnweb.freebsd.org/base/head/sys/x86/include/reg.h 17struct GPR 18{ 19 uint32_t fs; 20 uint32_t es; 21 uint32_t ds; 22 uint32_t edi; 23 uint32_t esi; 24 uint32_t ebp; 25 uint32_t isp; 26 uint32_t ebx; 27 uint32_t edx; 28 uint32_t ecx; 29 uint32_t eax; 30 uint32_t trapno; 31 uint32_t err; 32 uint32_t eip; 33 uint32_t cs; 34 uint32_t eflags; 35 uint32_t esp; 36 uint32_t ss; 37 uint32_t gs; 38}; 39 40struct dbreg { 41 uint32_t dr[8]; /* debug registers */ 42 /* Index 0-3: debug address registers */ 43 /* Index 4-5: reserved */ 44 /* Index 6: debug status */ 45 /* Index 7: debug control */ 46}; 47 48 49#define DR_SIZE sizeof(uint32_t) 50#define DR_OFFSET(reg_index) \ 51 (LLVM_EXTENSION offsetof(dbreg, dr[reg_index])) 52 53//--------------------------------------------------------------------------- 54// Include RegisterInfos_i386 to declare our g_register_infos_i386 structure. 55//--------------------------------------------------------------------------- 56#define DECLARE_REGISTER_INFOS_I386_STRUCT 57#include "RegisterInfos_i386.h" 58#undef DECLARE_REGISTER_INFOS_I386_STRUCT 59 60RegisterContextFreeBSD_i386::RegisterContextFreeBSD_i386(const ArchSpec &target_arch) : 61 RegisterInfoInterface(target_arch) 62{ 63} 64 65RegisterContextFreeBSD_i386::~RegisterContextFreeBSD_i386() 66{ 67} 68 69size_t 70RegisterContextFreeBSD_i386::GetGPRSize() 71{ 72 return sizeof(GPR); 73} 74 75const RegisterInfo * 76RegisterContextFreeBSD_i386::GetRegisterInfo() 77{ 78 switch (m_target_arch.GetCore()) 79 { 80 case ArchSpec::eCore_x86_32_i386: 81 case ArchSpec::eCore_x86_32_i486: 82 case ArchSpec::eCore_x86_32_i486sx: 83 return g_register_infos_i386; 84 default: 85 assert(false && "Unhandled target architecture."); 86 return NULL; 87 } 88} 89